What 6 months on Reconcile actually looks like.

This is the post I wish I'd had to read before our vet first said the word "Reconcile" in our exam room.

Quick disclosure up front: I'm not a vet. This is one dog's experience. Talk to your vet before making any medication decisions for your dog. With that out of the way — here's what six months of canine fluoxetine actually looked like for us.

How we ended up here

Benji was about eight months old when his separation anxiety stopped being something I could explain away as "puppy adjustment." He paced. He cried — not whined, cried — within 90 seconds of me closing the front door. He couldn't settle when I was in another room of our own house. He'd shake at the vet, at the pet store, at literally any stranger making eye contact.

I tried the things you're supposed to try first: counter-conditioning, gradual desensitization, a ThunderShirt, calming chews with L-theanine, a Snuggle Puppy with the fake heartbeat. Some of them helped a little. None of them made a real dent.

His vet ran bloodwork (normal), watched him during the exam, asked me to describe his bad days. Then she said the word Reconcile.

What Reconcile actually is

Reconcile is the veterinary brand name for fluoxetine — the same active ingredient as human Prozac. It's an SSRI: it works by changing how the brain handles serotonin, slowly, over weeks. It's FDA-approved specifically for canine separation anxiety, used alongside behavior modification.

It's not a sedative. It's not a "calm him down" pill. It's a long-term mood regulator. You don't see effects in a day; you see them over four to six weeks.

Our prescription: one chewable tablet, once a day, every morning. Benji takes his wrapped in a small piece of cheese.

Weeks 1–3: nothing happened, then something happened

For about the first 10 days, I genuinely thought it wasn't working. He was still pacing. Still distressed. Still convinced the doorbell was a threat to the family.

The side effect we did notice early: he was a little tired. Not lethargic — just less zooming. He'd take longer naps. His appetite dropped slightly the first week, then came back.

Around day 14 I noticed I'd been gone for 20 minutes and he hadn't pacing-cried the whole time. I almost cried.

Weeks 4–12: the gradual recalibration

This is where the real change happened, and it's why I think SSRIs get an unfair reputation as "personality eraser" drugs. Benji didn't become a different dog. He became more like the dog he is when he's not in fight-or-flight.

Things that improved:

• He could settle in another room without panicking
• Vet visits stopped being a full-body shake fest
• He met new people without immediately trying to hide
• The barking volume on routine triggers (mail truck, doorbell) dropped significantly
• He started initiating play again — he hadn't in months

Things that stayed exactly the same:

• His opinions. All of them. Especially about the wind.
• His commitment to following me to the bathroom
• His face. His personality. His weird little voice.

What no one warned us about

Three things would've been useful to know upfront:

1. The first two weeks can include increased anxiety. As his brain was adjusting, there were a few days where he seemed more on-edge before settling. The vet said this is normal and to call if it didn't resolve within 10–14 days. It resolved.

2. The behavior work doesn't stop. Reconcile gives you a calmer baseline to do the actual training from. It is not a replacement for training. We're still doing slow desensitization to alone-time, still rewarding calm. The medication makes those sessions possible; it doesn't make them unnecessary.

3. Coming off it is a process. You don't just stop. If/when we eventually wean him off, it'll be a gradual taper under vet supervision. Plan for at least a year on it before even discussing that conversation.

Would we do it again?

Without hesitation. The version of Benji we have now is the same dog with the volume turned down on the parts that were hurting him. He's not numb, he's not flat, he's not a different personality. He's still opinionated about everything. He just gets to enjoy more of his own life.

If your vet is suggesting Reconcile or another SSRI for your dog and you're scared of changing them: I get it. We were too. From the other side of six months: it might be the best gift you give your dog.

If this post helped you, please share it with another anxious-dog parent. The community on this stuff is small and it matters.